Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Substituted oxazolo[4,5-b]pyridin-2(3H)-ones were obtained by functionalization at 6-position with various substituents (alkyl, aryl, carbonyl chains,…) via reactions catalyzed with palladium. ... Substituted oxazolo[4,5-b]pyridin-2(3H)-ones having the general formula A ...